Bangladesh Border Guards are seen near Gulshan restaurant, after gunmen stormed a restaurant popular with expatriates in the diplomatic quarter of the Bangladeshi capital, in Dhaka, Bangladesh July 1, 2016. Courtesy of Dhaka Tribune/Mahmud Hossain Opu via REUTERS

Bangladesh Border Guards are seen near Gulshan restaurant, after gunmen stormed a restaurant popular with expatriates in the diplomatic quarter of the Bangladeshi capital, in Dhaka, Bangladesh July 1, 2016. Courtesy of Dhaka Tribune/Mahmud Hossain Opu via REUTERS

Bangladeshi Border Guards are seen near Gulshan restaurant, after gunmen attacked the popular venue in the diplomatic quarter of Dhaka on July 1, 2016. Photo: Dhaka Tribune/ Mahmud Hossain via Reuters.

Bangladesh Border Guards are seen near Gulshan restaurant, after gunmen stormed a restaurant popular with expatriates in the diplomatic quarter of the Bangladeshi capital, in Dhaka, Bangladesh July 1, 2016. Courtesy of Dhaka Tribune/Mahmud Hossain Opu via REUTERS